Sheet feeding machine



C. E. CHHlSTOPHEL.

SHEET FEEDING MACHINE.

APPLICATION man APR.9. 1919.

1,382,952. Patented June 28, 1921.

4 SHEElS-SHEET 1.

C. E. CHRISTOPHEL.

SHEET FEEDING MACHiNE.

APPLICATION FILED APR. 9. 1919.

1,382,952. PutentedJune 28, 1921.

4 SHEEIS-SHEET 2.

WITNESSES 7 WM INVENTOR fiv /A w C /Q M C. E. CHWSTOPHEL.

SHEET FEEDING MACHINE.

APPLICATION HLED APRQ, l9l9.

Patented June 28, 1921.

4 SHEHS- [ET 3.

WI TNESSES C. E. CHHISTUPHEL.

SHEET FEEDING MACHINE. APPLHIATIDN FILED APR. 9. 1919.

1,382,952. Patented J une 28,1921.

4 hHErllS-SHEET 4.

a citizen of German residi IT STATES- PATENT OFFICE.

CABI- is. mm mn or m YORK, Assroma 'ro DEXTEBIOLDER consent, or mm mm new YORK, a conromrronor imw YORK.

' sanct mams Toaltwltomc't may come-m."

Be it known that 1, Cam. E. Gnmsror I at Pear River, county of R00 and 'State of New York have invented aioe'rtam new and use ful improvement in. Sheet-Feeding Mach1nes,, of whichqthe following is a specification.

This invention relates to sheet feedin machines and has for its object to pmvi e an improved construction and arrange!!! of parts for adapting of this character to operate more rapidl and with greater certaint on sheets which are to be fed one by one roni a pile. One of'the objects of my inventionis to rovide an im- Eroved sheet feeding-mechanism which will e effective on sheets ofvarious kinds cludinglsheete of thin or flimsy paper which ordinarily are diificult to separate from a.

pile one at a tiine and; whichareeasily.

mutilated or muss'ed. The present invention contem ates in its preferred embodiment,

a soitaly formedle'verlmovable about an. axis into and out of position to lift a or-.

tion of a 'pile-of sheets, acombing wh co-v operating to graded movernents to sheets eoinfo'sin the periodically hfted portion'ofsai p110.

plates the cooperation of the lever with the sucker alone or thecod ration of the liftinglever with nieces; wheel alone, vfor effecting a prelimmary'separatmg action which m y be employed nconnection with any; suitablelmechanisnl for feeding ofi the sheets. Another ob ectv.of the invention is contemplated in the construction by means of which the ,sheetgnppmg suckercan be .80 arranged as to be moved into and out of position to operate upon the top sheet of thatportion of a pile'which has been elevatedby the lift lever. "The utility of these devices employed-one with another or all three together depends on the char actor of ,thelsheets which axebeing operated upon. v

Inthedrawings;

Figure .1 is a side elevation of a preferred embodiment of m invention taken in the direction indicate by. the lower arrow on h3g6; V l

g. .2 i a similar side elevation from the unngthe lifting movement, anda sheet gripping sucker mov opposite side as indicated b arrow in Fig. 6; y the upper Flg. B is a sideelevation similar to 1 showing the parts in changed positions;

Fig. 4 18 a smnlar side elevationshowing amoreadvsnced stage of the operation;

F1 5 1s a similar. side elevation showing the nal phase of the operation;

F 1g. 6 Is a top plan view of the mechanism. In the embp nnent of my invention EdlOWIl on the. drawings, a guide shaft 1, provided with a rock. 2 serves to carry a bracket 3 which 18 adapted to bemoved along the shaft 1 by means of a pinion (not shown) on the end of a spindle 4 provided with a hand gri Patented June 28, 1921. Application filed 1 m a, 1919. Serial no. seems.

5, said pinion being rotated thereby in 111881 e i with the rack 2. In Fig. 6 is shown the main bracket 3. Threaded on the upper end of the screw rod 9 is a handle 10 which is adapted to raise and lower the sheet so aerating device in its entirety. Journaled 1n the mam frame 6 is a cam shaft 11 to one end of which is secured the combing wheel 12. The other end of said shaft carries a bevel gear 18 which meshes with a similar r Mmounted on a. power shaft 15. Said 've and cam shaft 11 is thus rotated in the direction of the arrows shown on Fig. 6. It will be seen therefore'that the combing instrumentality 12 rotates on a fixed axis. The frame 6 is provided with rearwcrdl presented arms 16 which carry a shaft or be t 17. Pivotally mounted on the shaft or bolt 17 is a; lifti lever 18 which roughly conforms in con or to the periphery of the comber 12 when said lever is in operative position with respect to said comber. For this purpose, the lower end of said lever is pointed at 19 to adapt it to be driven into apile of sheets on a table 20 for momentarily lifting o. portion of said pile; Rigidly secured to the shaft or bolt 17 are spaced forwardly presented bracket arms 21 between which extends a spring rod 22. Pins or trunnions .28 which are journaled between the arms 21, carry aguide or enlargement 24 in which the rod 22 is sliclably mounted. Surrounding the rod 22 and interposed between the guide or enlargement 24 and a thuinb nut on the upper end of rod 22, is

a spring 26. At its lower end, the rod 22 is connected at 27' to the lift lever 18. It'riill be seen therefore that the spring 26 tends to throw the lift lever 18 into operating engagement with the pile of-sheets. The lift lever 18 carries a pm or stud 28 onwhich is pivotally mountedone end of a cam lever 29. The other end of said cam 'lever'comprises leterelly speced arms 30 which slidably engage the cam shaft 11. J oiirnaled on the com lever 29 is a. roller-31 which travels on 'a cam 82 keyed to the'eem shaft 11. At

each inward movement of lift lever 18, a

portion of the pile is lifted in themanner indicated in Fi 3 :just in time for said portion ofthe e to be '0 ercted upon by comber 12. epending bolt. 17 is a bracket arm 33 at the lower end of which is mounted a pin 34 which serves to ivot a curved arm 35 which is provided on its outer-end with a plurality of holes or sockets 36 'for the reception of a stud 37 which carries a. suction tube 88 provided at its lower end with a. sheet gripping sucker '39. Suitable means for movingthls sucker into and out ofposition to grip the top sheet of the pile, is Provided by acam 40 over which travels a roller 41 which is journaled on a pin 42 carried b the leverorm 35. On the lower end of a spending bracket arm 43 is a laterally rejecting guide pin 4. L on which slides a. c amping foot $5 which is provided with a. suitable cam surface 46'nnd on upwardly extending slot 47 which adapts said clamping foot to more downwardly and upwardly prior to and after each inward and outward movement; The clamp foot 45 is swinginglv suspended from a pinTeLS- car'-' ried by a camlever 49 which pivots on the shaft or bolt 17. Said cam lever 49 is prosided with e renrwcrdlyprojeet' V between which end a SllIlllfll arm 1 of the clamping ioot 45 extends a. sprinlgmmwhich tends to draw" them together. is spring is thereby adapted-to perform a double function, namely, to import the movements to" said clamping foot 45 while at the-sometime to hold n cam roller 53 which is servin journ ed on the cam lever 39, a inst the cam 54 which serves to govern t emove ments of these parts. The usual wind pipe 55 is connected to a nozzle 56 which is su1t' According to the relative positions of the parts shownin Figs. 1, 2'imd 6, the sucker 39 has :1. short time before released the pre ceding top sheet which is being withdrawn from the pile by suitable means not shown on the drawings. The cam roller 41 (which controls the rise and fall of the sucker 39) mm the stud or enter run of com *0. The

arm 50,

The operation of the is soon tobe permitted to more to the inner rga gement therewith. 0n] the other hand the clam ing foot 45 is about to be shifted toward t e right endliftedby means of the com 54 whichmoves the cam'rolleroti into its extreme right hand position according to Fig. 1. At t e same tune, the lifting lever 18 is about to be thrown into the position shown'in Fig. 3 by reason oi cam roller 31 being released by com 3211c assume-its extreme left hand position. As shown in Fig'. 3, clamping foot iihasbeen lifted by-oam roller 53 being forced to the outer run of cam 54, while the lifting :lever 18 has placed upwardly a. portion of the pile (in the present instance one corner) int'o'position to have the comber 12 operate on the top sheets. According toFig. 8, the sucker i'smovin'g downward as theoomber 12 be its'action upon the to sheets. By'the tune shownin Fig. i, the to of the pile has attached thereto by suction. Immediately afterward, the cam roller 31 is forced-to the enter or com. 82 to throw the lift lever 18 .away from'the &ile as shown'in Fig. 5. At the same time, e clamping foot 45 has moved, forward and downward; brus past theedge of the topsheet'during the sucker-Is rising movement which is occe sioned by cam-roller 41 being forced to the Ea are ne moved into the relative positions shown in Figs 1, Bend 0, the separated top. sheet bereleased by the sticker and .pessediorwe rdly from' the ns/chine.

operetions hos produced in theseqnencepointedout .ebove. c

I claim:

1. In c -sheet' feeding machine, it sheet gripping instrumentelity, means for supion 0 said pile dis lacedrelativ portions of said p e, and means operating upon the topsheet of said pile in e direction away tr-om said sheet grippingnstrumeniortin a pile of sheets and holdi onejpcri f it telity for .movin said top sheet into posiby said sheet gripping in thin tube eng strnmentolit i g I {In a, sect feeding machine, a sheet gripping instrumentelity, means for supportm a. pile of heets and'holding one portion o s'sid pile displaced relatively to other portions of seid pile, and means operating upon the displaced portion otthe topsheet of said pile in a direction away from said sheet gripping instrumentelity and moving said top sheet inte position to be engaged by said sheet gripp' instrumentelity.

3. In a sheet eedinghmschinc, a sheet gripping instrumental ty, means for supbeen drawn into a suite e position be The successive to other ion;

porting a pile of sheets, means. for displacmg one portion of said pile relativelyto en'- other, and means operatingnpon the top sh egtsgf :aid p'ile in; a ggvay 89m sea as in ms rumen an -111- tiarniediateg' f E? g y mentality and said dlsplamng means for moving said to sheet mto position to be t lg'aged byzsai sheet gripping instrumena y. y

4.- In a sheet feedin machine, a pile supporting table, means or imparting a bend toaportion of said pileya sheet ipping instmmentality, means for straig temn the top sheet of said' pile across said ban for moving it into a position to be gripped by said instrumentalityand means for introdlilicipg a blanket o air beneath said top 5 89'. t

5. In a sheet feeding machine,-apile holding table, means for lifting a -portion of said pile, asheet' ipping instrumentality arranged above a S e 0 sheets on said table, and means opera' 'g on the top sheet of said pile in a direction away from said" sheet gripping instrumentality for straightenmg said top sheet and'moving it nearer said sheet gripping instrumentahtyl.

6. In a sheet feedin machine, t e combination with a pile hol g table, of a sucker and means for lifting a portion of a. ile of sheets from said table and tower said sucker, and a sheet combing instrumentahty operating on the lifted portion of said pile for drawing out the top sheet mto position to be engag led by saidsucker.

7. In a. s set feeding machine, the combination with a table for supporting a pile of sheets, of a. sucker movab e into and-out of operating position a lever movable into and out of posltion to a portion of a pile of sheets into a position from which thesucker engages the top sheet for separating 1t from the pile, and means for perlodlcally moving said sucker and lifting lever mto and out of cooperating ositions.

8. In a sheet ceding machine, a pile holding table, means for a portmnpf said pile, a sheet grip mg instrumentahty arra ed above a pi e 0 sheets on sa1d table, and s ieet combing means operatlng on the top sheet of said pile in a direction away from the said sheet grippin instrumentality for straightening said top 9 pet and moving it nearer said sheet gripping instrumentality. o

9. In a. sheet feeding machine, a pile holding table, means for lifting a port1on of said pile, a sheet 1p mg mstrumentahty arrsn ed above a pi e 0 sheets on sa1d table, and s set combing means operating on the top sheet of said pile in adlrection away from said sheet gripping instrumentahty for straightenin sai top sheet and moviplg it nearer said set gripping instrument said sheet gripping; instrur on an; axis above said tab e and havin ity, said means including a lever movable about an axis into and out of positionto hold said lifted portion of the pile 1n momentary engagement with said sheet combing-means.

10. In a sheet feeding machine, the combination with a table for holding apile of sheets, of sheet separating mechanism including a sucker, a combing wheel journaled on an axis above said table and having its operating periphery normally spaced from a pile of sheets on "said table, and a l fting lever-movable into and out of position to raise a portion ofsaid' pile into. operating engagement with said combing wheel.

= 11. In a sheet feeding machine, the combination with a table for holdin a pile of sheets, of sheet separating mec anism including a sucker, a combi'n wheel journaled its operat' riphery normally 9 need mm a pile o shtets on said table, ali d a lifting lever movable into and out of position to raise a portion of said pile'into operating ongement with said combing wheel, said ifting lever being shaped to conform approximately to the periphery of said com mg wheel.

12. In a. sheet feeding machine, a pile supportin table, a lifting lever suitably mounted for ifting a corner of a pile of sheets on said table, a sheet glripping sucker movable toward and away om said pile of sheets pile of sheets and between said sucker and said lifting lever.

13. In a sheet feeding machine, a ile holdin table, a lever for'lifting a po 10::

and a combing wheel arranged above said of sai pile, a sheet gripping instrnmentalitp arranged above a pile of sheets on said tale, means for moving said lever and sheet grip ing instrumentality alternately toward an away from each other, and a combing wheel arranged between said lift- 11 rotatable on a fixed axis above said'table,

means for momentarily lifting a portion of ortion by said combing i'nstrumentality.

a pile of sheets into and out of engagement with said pile comber for efiecting a reliminary separation, and means mova. le into and out of gripping engagement with the lifted portion of the separated upper sheet for removing said sheet.

Mia"

16. In a sheet feeding machine, a table for holding a pile of sheets, a rotary pile comber arranged above said table, a lever suitably formed and movable into and out of position to lift a portion of said ile into pos tion to be engaged by said com er, and a sheet engaging sucker movable into and out of positipn to engage the lifted portion of the top 5 eet.

17. In a sheet feeding machine, a table for holding a pile of sheets, a rotary pile comber arranged above said table, a lever suitably formed and movable into and out of position to lift a portion of said ile into positionto be engaged by said com er, and a sheet engaging sucker movable into and out of position to engage the lifted portion of the top sheet, sai sucker and lifting lever being movable toward said rotary comber from opposite sides thereof. l

18. In a sheet feeding machine, a sheet ongaging instrumentality having a sphereof action spaced above the top surface of a .pile of sheets, means for lifting a portion of said pile into the sphere of action of said sheet engaging instrumentality, vand sheet gripping means movable into and out of positlon v or "dlsdplacing portions of some ofthe sheets of sai pile r atively to otherortions of the same sheets, and means=operaion the displacedportion' of the topsheet or movmgja portion of said top sheet into position to e engaged by said sheet gripper in sheet gri ping osition, said displacingmeans and saic tops eet moving means being movable into and out. of cooperating relation to each other and on oppos1te sides-of the lifted p01? tion-of saidsh'eets. a i

20. In a sheet feeding machine, a sheet gripper movable-into and out of its lowermost position above a. pile of sheets, means for ]i said gripper lnjits lowermost position, and a sheet combingdevice operating upon the lifted portion-of the top sheet of said pile for drawing said top sheet into position to be engaged by said sheet gripper.

I o e; E. CHRISTOPHER."

ting a. portion of'saidipile adjacent to i 

